4005122 has 16 divisors (see below), whose sum is σ = 6586272. Its totient is φ = 1811520.

The previous prime is 4005121. The next prime is 4005137. The reversal of 4005122 is 2215004.

It is a junction number, because it is equal to n+sod(n) for n = 4005097 and 4005106.

It is not an unprimeable number, because it can be changed into a prime (4005121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6458 + ... + 7050.

It is an arithmetic number, because the mean of its divisors is an integer number (411642).

Almost surely, 2^4005122 is an apocalyptic number.

4005122 is a deficient number, since it is larger than the sum of its proper divisors (2581150).

4005122 is a wasteful number, since it uses less digits than its factorization.

4005122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 4005122 is about 2001.2800903422. The cubic root of 4005122 is about 158.8078318653.

The spelling of 4005122 in words is "four million, five thousand, one hundred twenty-two".